{"instruction": "You are an expert in named entity recognition. Please extract entities that match the schema definition from the input. Return an empty list if the entity type does not exist. Please respond in the format of a JSON string.", "schema": ["Disease", "Chemical"], "input": "Radiological studies were mostly angiographies performed with both ionic and non - ionic contrast material , at an average dose of 245 ml ."}
{"Disease": [], "Chemical": []}